Just a couple of weeks ahead of a planned protest by taxi drivers in London, Transport for London — the taxi regulator in the city — has announced it's now asking the High Court to rule on the legality of Uber.

The Licensed Taxi Drivers Association is convinced that Uber is breaking the law in London, the BBC reports. It says Uber's app is the same as having a taximeter — something private vehicles are not allowed to use.

Transport for London doesn't agree because Uber doesn't require a physical connection between the app and the car. Though, it's worth noting that a lot of Uber drivers do have their phone mounted onto the car's dashboard.

Still, Transport for London says it will ask the High Court to rule on the matter, "given the level of concern among the trade." Despite TfL asking the High Court for a ruling, taxi drivers still plan on protesting.

The plan is to essentially shut down parts of the city with a bunch of congestion and traffic chaos.